Iowa police dog dies after being left in Des Moines patrol carBy Vignesh RamachandranOfficials in Iowa are investigating the cause of death of a police dog that was left in a patrol car on a hot Wednesday afternoon.

The Labrador retriever, named Harley, was a 7-year veteran of the Des Moines Police Department, NBC station WHO reported.

Officials were unsure whether the car's air conditioning was on, if any windows were rolled down or how long the yellow lab was in the car, The Des Moines Register reported.